Improvement in machines for notching and flanging counter-blanks for boots



' N. HARWOUD. Machine for Notch i ng and Hanging Gounter- Blanks forBoats and Shoes. No. l68,329. Patented Oct. 5, I875.

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N. PETERS. PrIGTOMTMOGHAFMER, WASHINGTON, D C.

UNITED STATES PATENT, I OFFICE.

NAHUM HARWOOD, OF LEOMINSTER, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR NOTCHING AND FLANGING COUNTERBLANKS FORBOOTS AND SHOES.

Specification forming part of Letters Patent No. 168,329, dated October5, 1875; application filed August 10, 1875.

To all whom it may concern Be it known that I, NAHUM HARWOOD, ofLeominster, of the county of Worcester and State of Massachusetts, haveinvented a new and useful Machine for Notehing and Flanging the Blanksfor Counters for Boots or Shoes; and I do hereby declare the same to befully described in the following specification, and represented in theaccompanying drawings, of which- Figure 1 denotes a top view, Fig. 2 aside elevation, and Fig. 3 a longitudinal section, of the said machine.Fig. 4 is a front-end view of it without its notching-die carrier. Fig.5 is an inner-edge view, and Fig. 6 a bottom view, of the saiddie-carrier. Fig. 7 is a view of a counter-blank, preparatory to beingnotched and'flanged by the machine. Fig. 8 is a perspective view of suchblank as it appears after having been subjected to the action of themachine, such blank being subsequently, by another machine, bent ormolded into shape, as exhibited in perspective view in Fig. 9.

In the operation of the machine, hereinafter described, thecounter-blank, afterhaving been duly introduced into it, has a series ofnotches made in it at the middle of its chord, such being as shown at a.a a in Fig. 8, after which the blank is bent at, or about at, a rightangle, so as to form it with a flange or bottoming, as shown at b insaid figure. The nature of my invention, therefore, con sists mainly inthe combination of mechanism for notching and holding the blank, withmechanism for bending it down or flanging it parallel to its chord, suchblank being semielliptical, or approximately so, in shape, as shown inFig. 7.

The object of notching the blank is to enable it to be readily bentaround at the middle of its flange, so as to fit to the heel portion ofa last.

In the drawings, A denotes the bed-plate of the machine, such plate atits front end being furnished with a series of female dies, 0 c c, andthree gages, d d e. In front of the said gages and dies, and resting onprojections ff, is the male-die carrier B, provided,

as shown, with three male notching-dies, g g g. This carrier B is toslide freely on such supports, and it has projections h t extended downfrom it to receive between them the end of a long lever, 0, (formed asrepresented,) whoselarger arm rests on a stud, 70, projecting from apitman, D, pivoted 'to and arranged with two toggles, E F, at theircommon junction. One of these toggles is jointed to the bed-plate, andthe other to a carriage, G, to slide rectilinearly on the said plate,such carriage being provided with a roller, H, arranged as represented.

On placing the counter-blank chord downward and vertically on the gagesd d, and against that marked 6, and forcing downward the pitman, thedie-carrier with its male dies will be driven toward the female dies,and they, with the male dies, will effect the notching of the blank,which will next be held firmly between the inner edge 0 of the saidcarrier and the part m of the base-plate, (such edge and partconstituting jaws, or perform ing the functions of jaws, to hold theblank,) while there is being effected the flanging or bending down uponthe upper surface of the die-carrier of all that part of the blank thatmay extend above it. This next follows, and it is produced by theroller, which, soon after the notching of the blank may have takenplace, will be moved forward against the blank by the toggles and willgradually bend and force it down upon the top of the die-carrier. Onraising the pitman the die-carrier will retreat from the part 912, andthe roller will be retracted. There is to be suspended from the longerarm of the lever O a heavy weight or one sufficient to cause such leverto properly actuate the die-carrier, in order for the blank to benotched by the dies.

I usually make both jaws to slant orincline a little from the vertical,as shown. On the blank being removed from the machine the flange of theblank will naturally spring into a somewhat greater angle to the rest ofthe blank than it had when in the machine. The inclination of the jaws,therefore, is to be such as to compensatefor this springing of theblank-flange.

Igclaim asmy invention- In armaiehine for notching and formingconnter-stifleners for boots and shoes, the combination 'of a, carriage,G, and roller H with reciprocative jaws m 0, provided with gages d d e,notching-dies 0 g, and die-carrier B, all attached. to a suitablebed-plate, A,

- and operated by toggles, .pitnhen, andweightedslever, substantially asshown, and-for the purpose described.

NAHUM HARWOOD.

Witnesses R. H. EDDY, J R. SNOW.

